Reamer attachment for die-stocks.



P. SAVILLE.

REAMER ATTACHMENT FOR DIE STOCKS.

APPLICATION FILED MAY 17, 1912.

1,055,087, Patented Mar. 4, 1913.

Old. W. I 4' I I 0% A zsflzz'orney FRANCIS SAVILLE, or CHICAGO,ILLINOIS.

BEAMER ATTACHMENT FOR DIE-STOCKS.

A Specification of Iietters Patent.

Patented Mar. 4, 1913.

Application filed May 17, 1912. Serial No. 697,854.

To all whom it may concern Be it known that I, FRANCIS SAVILLE, asubject of the King of Great Britain, and a resident of the city ofChicago, county of Cook, and State of Illinois, have invented certainnew and useful Improvements in Reamer Attachments for Die-Stocks, ofwhich the following is a specification.

'My invention relates to improvements in reamer attachments forpipe-threading die stocks, and has for its ob ect the production of adevice of this character which will be of improved construction andwhich will be highly efficient in operation.

Other objects will appear hereinafter.

With these objects in view, my invention consists in the combination andarrangements of parts hereinafter described and claimed.

My invention will be more readily understood by reference to theaccompanying drawing forming a part of this specification, and in whichv Figure 1 is a perspective view' of a reamer attachment embodying myinvention, Fig. 2 is a plan view thereof, and Fig. 3 is a section takenon substantially line 00 m of Fig. 2.

The preferred form of construction, as illustrated in the drawing,comprises a base plate 1 which is adapted to be arranged upon the frontside of a conventional die stock, a circular opening 2 providedcentrally in the plate 1 being adapted to register with the pipe openingin the die stock, as will be readily understood. The plate 1 is formedat one side with a perforation 3 and at its opposite side with a slot 4,said perforation and slot afiording means for fastening the device uponthe die stock, the slot 4 permitting of the device being swung to oneside, when the nut or other fastening device which cooperates with thecorresponding side of the plate 1 is retracted, for gaining ready accessto the interior of the die stock.

Formed integral with and projecting from the front side of the plate 1are supporting arms 5 at the outer ends of which is supported a tubularmember arranged coaxial with the opening 2. Said tubular member isformed of two separate sections 6 and 7 which are rigidly connected andheld in spaced relation by means of diametric yokes 8. Slidably mountedin said tubular member is the shank 9 of the reamer 10 which is conicalin form, as shown, said shank being circular in form corresponding withthe form of the coaxial openings in the sections 6 and 7 Provided in thesection 7 are inwardly projecting pins 11 which engage a longitudinallyextending groove 12 provided in one side of theshank 9, thisconstruction serving to lock' said shank against relative rotarymovement but permitting of free vertical movement thereof. Arranged inthe space intervening the members 6 and 7 is a nut 13 which is threadedupon the shank 9. iThe arrangement is such, as will be observed, thatlongitudinal adjustment of said shank in the members 6 and 7 and hencecorresponding adjustment of the reamer 10 to adjust the position thereofrelative to the die stock cooperating with the reamer or to the pipe endpositioned in 75 said diestock, may be effected by rotating the nut 13.

By providing a conventional die stock with a reamer attachment of theconstruction set forth, it will be seen that the threading of a pipe andthe removal of the bur, which is formed at the end of a severed pipe,will be secured in one operation;

The device is simple and economical in construction and the same is sodesigned as to be capable of ready and expeditious adjustmentg While Ihave illustrated and described the preferred form ofconstruction forcarrying my invention into efiect, thisis capable of variation andmodification without departing from the spirit of the invention. I,therefore, do not wish to be limited to the exact details ofconstruction set forth, but desire to avail myself of such variationsand modifications as come within the scope of the appended claim.

Having described myinvention, what I claim as new and desire to secureby Letters Patent, is:

A reamer attachment for pipe threading die stockscomprising a platehaving a central opening therethrough; a plurality of converging arms onsaid plate; a tubular member comprising two sections spaced apart bymeans of" yoke arms, such tubular member being secured in axialalinement with said opening in said plate by means of Stud convergingarms; a reamer shaft having a spline Way extending longitudinally Intestimony whereof I have signed my thereof'and slidably mounted in saidtubuname to this specification in the presence of lar member; pins insaid tubular member two subscribing Witnesses.

engaging said spline Way in said reamer FRANCIS SAVILLE. 5 shaft; andaunt threaded on said reamer Witnesses:

shaft between the two sections of said tubu- JOSHUA R. H. PoTTs,

lar member. ARTHUR A.-OLsoN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

